TY - JOUR
T1 - Effect of Lüders strain on engineering crack opening displacement estimations for leak-before-break analysis
T2 - Finite element study
AU - Kim, Y. J.
AU - Huh, N. S.
AU - Kim, Y. J.
PY - 2001/9
Y1 - 2001/9
N2 - As a companion paper to our previous paper [Fatigue Fract. Engng Mater. Struct. 24, 243-254], this note provides further validation on the engineering crack opening displacement (COD) estimation equation based on the enhanced reference stress method against three-dimensional, elastic-plastic finite element (FE) results using actual tensile data of three typical ferritic steels exhibiting a wide range of Lüders strain. Furthermore, the resulting FE results are also compared with the GE/EPRI COD predictions. It is found that the proposed enhanced reference stress method gives overall more accurate and robust COD results than the GE/EPRI method, compared with the FE results.
AB - As a companion paper to our previous paper [Fatigue Fract. Engng Mater. Struct. 24, 243-254], this note provides further validation on the engineering crack opening displacement (COD) estimation equation based on the enhanced reference stress method against three-dimensional, elastic-plastic finite element (FE) results using actual tensile data of three typical ferritic steels exhibiting a wide range of Lüders strain. Furthermore, the resulting FE results are also compared with the GE/EPRI COD predictions. It is found that the proposed enhanced reference stress method gives overall more accurate and robust COD results than the GE/EPRI method, compared with the FE results.
KW - Crack opening displacement
KW - Enhanced reference stress method
KW - Leak-before-break
KW - Lüders strain
UR - https://www.scopus.com/pages/publications/0035441085
U2 - 10.1046/j.1460-2695.2001.00432.x
DO - 10.1046/j.1460-2695.2001.00432.x
M3 - Article
AN - SCOPUS:0035441085
SN - 8756-758X
VL - 24
SP - 617
EP - 623
JO - Fatigue and Fracture of Engineering Materials and Structures
JF - Fatigue and Fracture of Engineering Materials and Structures
IS - 9
ER -